The term that is a type of clause among the options you provided is "dependent."
- A dependent clause is a group of words that has both a subject and a verb but does not express a complete thought; it cannot stand alone as a sentence.
The other terms are not types of clauses:
- A prepositional phrase begins with a preposition and includes a noun or pronoun (the object of the preposition) and any modifiers.
- An appositive is a noun or noun phrase that renames another noun right beside it.
- A gerund is a verb form that ends in -ing and functions as a noun but is not a clause.
Thus, the correct answer is "dependent."